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Chemistry NMDCAT MCQs

Ace your medical entry test with Pakistan's premium collection of Chemistry MCQs. Strictly aligned with the latest PMDC syllabus, our platform offers high-yield practice questions for Physical, Inorganic, and Organic Chemistry—complete with detailed conceptual explanations to maximize your score.

305 questions found

Subcategories

📁 Absolute Zero 0 📁 Acidity of Alkynes 0 📁 Adhesive 0 📁 ALCOHOLS AND PHENOLS 0 📁 Alcohols and Phenols (Differentiation) 0 📁 ALDEHYDES & KETONES 0 📁 ALKYL HALIDES 0 📁 Anomalous behavior of Water 0 📁 Application of Dipole Movement 0 📁 Application of VSEPR Theory 0 📁 ATONTIC STRUCTURE 0 📁 Balancing Chemical Reaction 0 📁 Boiling point and Vapor Pressure 0 📁 Bond Energy 0 📁 Boyle's Law 0 📁 Buffer Solution 0 📁 CARBOXYLIC ACIDS 0 📁 Charles's Law 0 📁 CHEMICAL BONDING 0 📁 Chemical Equilibrium 0 📁 Chemical Kinetics 0 📁 Chemical Reactions of Benzenes 0 📁 Chemical Reactions/Reactivity 0 📁 Chemistry MCQS By Iqbal Hussain 0 📁 CHETVI ICAL EQUI LIBIRIUM 0 📁 Classification of Proteins 0 📁 Common Ion Effect 0 📁 Conversion of Carboxylic Acid 0 📁 Crystal lattice 0 📁 Crystalline Solids 0 📁 D- & F Block Elements 0 📁 Definition and Classification of Organic Compound 0 📁 Different Terms Used 0 📁 Dipole Movement 0 📁 Discovery of Proton 0 📁 Dyes 0 📁 Effect of Substituents 0 📁 ELECTROCHEVIISTRY 0 📁 Electronic Configuration 0 📁 Electronic Structure 0 📁 Enthalpy 0 📁 Enzymes as Biocatalyst 0 📁 Evaporation 0 📁 Exothermic and Endothermic Reaction 0 📁 Factors affecting rate of reaction 0 📁 Factors Affecting the Shape of Ionic Crystals 0 📁 Free Radical Mechanism 0 📁 Functional Group 0 📁 FUNDAMENTAL CONCEPTS OF CHEMISTRY 0 📁 FUNDAMENTAL PRICIPLES OF ORGANIC CHEMISTRY 0 📁 Haber’s Process 0 📁 Hess’s Law 0 📁 Hybridization 0 📁 Hydrogen Bonding 0 📁 Ideal Gas Equation 0 📁 Importance of Proteins 0 📁 INDUSTRIAL CHEMISTRY 0 📁 Internal Energies 0 📁 Ionic and Molecular Crystals 0 📁 Isomerism 0 📁 IUPAC System of Alkynes 0 📁 Kinetic Molecular Theory 0 📁 Lattice Energy 0 📁 Law of Thermodynamics 0 📁 Le Chatelier's principle 0 📁 Limiting and Excess Reactants 74 📁 LIQUIDS 0 📁 Macro Molecules 0 📁 Moles and Avogadro's Numbers 150 📁 Moles and Avogadro’s Numbers 120 📁 MOT of Benzene Resonance and Resonance Energy 0 📁 Nomenclature 0 📁 Nomenclature and structure of Aldehydes and Ketones 0 📁 Nomenclature of Alkanes 0 📁 Nomenclature of Alkenes 0 📁 Nomenclature Structure and Reactivity 0 📁 Order of Reaction 0 📁 Oxidation and Reduction 0 📁 P- 0 📁 Planck's Quantum Theory 0 📁 Polymers 0 📁 Preparation 0 📁 Preparation of Alkanes 0 📁 Preparation of Alkynes 0 📁 Properties Of Liquids based on Kinetic Molecular Theory 0 📁 Quantum Number 0 📁 Rate Constant 0 📁 Reaction of Aldehydes and Ketones 0 📁 Reaction of Group I elements 0 📁 Reaction of Group II elements 0 📁 Reaction of Group IV elements 0 📁 Reactions of Alkynes 0 📁 Reactivity of Aldehydes and Ketones 0 📁 Reactivity of Benzene 0 📁 Real and Ideal Gas 0 📁 Redox Reaction 0 📁 S AND P BLOCK ELEMNETS 0 📁 S- 0 📁 s- and p- Block Elements Properties and their Trends 0 📁 Shapes of Alkenes 0 📁 Shapes of orbitals 0 📁 Sigma and Pi Bond 0 📁 SOLIDS 0 📁 Solubility Products 0 📁 Spectrum of Hydrogen 0 📁 Standard Hydrogen Electrode (SHE) 0 📁 Standard Temperature and Pressure (STP) 0 📁 Structure and Preparation of Carboxylic Acid 0 📁 structure and reactivity of Alcohol 0 📁 Structure and Reactivity of Alkenes 0 📁 structure and reactivity of Phenols 0 📁 Substitution vs Addition 0 📁 Substitution vs Elimination 0 📁 THERMOCHEMISTRY & ENERGETICS OF CHEMICAL REACTIONS 0 📁 Thermodynamics 0 📁 Unit of "R" 0 📁 Unit of “R” 0 📁 VSEPR Theory 0 📁 Yield 80

Practice Questions

For a fixed mass of any substance, the greatest number of moles is obtained when the molar mass is

A. Highest
B. Lowest
C. Equal to density
D. Equal to atomic number

Number of moles is inversely proportional to molar mass.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Percentage yield = (0.45 ÷ 0.75) × 100 = 60%.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The balanced equation is 3Fe + 4H₂O → Fe₃O₄ + 4H₂. Their sum is 12.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Equal volumes of gases under identical conditions contain equal numbers of molecules according to

A. Boyle's law
B. Charles' law
C. Avogadro's law
D. Dalton's law

Avogadro's law relates gas volume directly with the number of molecules at constant temperature and pressure.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The sample contains 0.25 mole of CO₂. Since one mole weighs 44 g, the mass is 11 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Half a mole of CO₂ occupies 11.2 dm³ at STP.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The mass of a single sulfuric acid molecule is calculated by dividing 98 g by

A. Atomic number
B. Molecular volume
C. Avogadro's number
D. Equivalent weight

The molar mass divided by Avogadro's number gives the mass of one molecule.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Complete oxidation of 64 g SO₂ according to 2SO₂ + O₂ → 2SO₃ forms

A. 0.5 mole SO₃
B. 1 mole SO₃
C. 2 moles SO₃
D. 3 moles SO₃

Sixty-four grams of SO₂ equal one mole, producing one mole of SO₃.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The relationship between one carbon-12 atom and one atomic mass unit is

A. Equal masses
B. Carbon atom is twelve times heavier
C. Atomic mass unit is twelve times heavier
D. Both have identical masses

One atomic mass unit is defined as one-twelfth the mass of a carbon-12 atom.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Actual yield equals 80% of theoretical yield. Therefore, 0.80 × 5 = 4 moles.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

A sample containing 3.011 × 10²³ molecules of water has a mass of

A. 18 g
B. 9 g
C. 27 g
D. 36 g

This represents 0.5 mole of water. Half of 18 g equals 9 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

The balanced equation directly provides the ratio.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Avogadro’s constant represents

A. Number of atoms in one gram
B. Number of particles in one mole
C. Number of electrons in hydrogen
D. Number of molecules in one litre

One mole always contains 6.022 × 10²³ elementary particles.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

During the reaction N₂ + 2O₂ → 2NO₂, complete reaction of 0.5 mole nitrogen produces

A. 0.5 mole NO₂
B. 2 moles NO₂
C. 1 mole NO₂
D. 0.25 mole NO₂

One mole of nitrogen produces two moles of nitrogen dioxide. Therefore, 0.5 mole yields one mole.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

At STP, two moles of an ideal gas occupy

A. 11.2 dm³
B. 22.4 dm³
C. 33.6 dm³
D. 44.8 dm³

One mole occupies 22.4 dm³ at STP, so two moles occupy 44.8 dm³.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

During the reaction 2Mg + O₂ → 2MgO, complete oxidation of 48 g magnesium forms

A. 40 g MgO
B. 80 g MgO
C. 120 g MgO
D. 160 g MgO

Forty-eight grams of magnesium equal two moles, producing two moles of MgO. The mass becomes 80 g.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

One mole of ammonia contains hydrogen atoms equal to

A. 1 mole
B. 2 moles
C. 3 moles
D. 4 moles

Each NH₃ molecule contains three hydrogen atoms; therefore one mole of NH₃ contains three moles of hydrogen atoms.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

A sample containing 0.5 mole of a compound possesses

A. 3.011 × 10²³ molecules
B. 6.022 × 10²³ molecules
C. 1.204 × 10²⁴ molecules
D. 1.505 × 10²³ molecules

Half a mole contains half of Avogadro's number of molecules.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026

Glucose contains six carbon atoms per molecule. Therefore, 0.5 mole of carbon atoms corresponds to 0.5 ÷ 6 = 0.083 mole of glucose.

nmdcat.online Chemistry NMDCAT MCQs
Jul 2, 2026
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